Car will not start
Car almost starts but will not replaced fuel pump
plugs coils wires
Make sure battery has a full charge and connections all good. If it cranks good but won't start, have a helper crank it while you check for spark at the plugs. Use a gage and check proper fuel pressure. Engine cranking, check for fuel injector pulse. Check for applicable trouble codes. Those are the basic checks, in my opinion. Let us know what you find? I don't know year--make--model or engine size?